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   <div id="projectname">TTMath
   &#160;<span id="projectnumber">0.9.4_prerelease_2019-07-31</span>
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   <div id="projectbrief">&nbsp;C++ bignum library</div>
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<a href="ttmaththreads_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * This file is a part of TTMath Bignum Library</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * and is distributed under the 3-Clause BSD Licence.</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Author: Tomasz Sowa &lt;t.sowa@ttmath.org&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">/* </span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * Copyright (c) 2006-2009, Tomasz Sowa</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * All rights reserved.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * </span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * </span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *  * Redistributions of source code must retain the above copyright notice,</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *    this list of conditions and the following disclaimer.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *    </span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> *  * Redistributions in binary form must reproduce the above copyright</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *    notice, this list of conditions and the following disclaimer in the</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> *    documentation and/or other materials provided with the distribution.</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> *    </span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> *  * Neither the name Tomasz Sowa nor the names of contributors to this</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> *    project may be used to endorse or promote products derived</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> *    from this software without specific prior written permission.</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment"> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment"> * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment"> * THE POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#ifndef headerfilettmaththreads</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#define headerfilettmaththreads</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ttmathtypes_8h.html">ttmathtypes.h</a>&quot;</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#ifdef TTMATH_WIN32_THREADS</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#include &lt;windows.h&gt;</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#include &lt;cstdio&gt;</span></div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="preprocessor">#ifdef TTMATH_POSIX_THREADS</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="preprocessor">#include &lt;pthread.h&gt;</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">/*!</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">    \file ttmaththreads.h</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">    \brief Some objects used in multithreads environment</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacettmath.html">ttmath</a></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;{</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor">#ifdef TTMATH_WIN32_THREADS</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="comment">/*</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">        we use win32 threads</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">        in multithreads environment you should use TTMATH_MULTITHREADS_HELPER macro</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">        somewhere in *.cpp file</span></div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">        (at the moment in win32 this macro does nothing)</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="preprocessor">    #define TTMATH_MULTITHREADS_HELPER</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">        objects of this class are used to synchronize</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keyword">class </span>ThreadLock</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    {</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        HANDLE mutex_handle;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keywordtype">void</span> CreateName(<span class="keywordtype">char</span> * buffer)<span class="keyword"> const</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="keyword">        </span>{</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="preprocessor">            #ifdef _MSC_VER</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="preprocessor">            #pragma warning (disable : 4996)</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="comment">// warning C4996: &#39;sprintf&#39;: This function or variable may be unsafe. Consider using sprintf_s instead.</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="preprocessor">            #endif</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            sprintf(buffer, <span class="stringliteral">&quot;TTMATH_LOCK_%ul&quot;</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)GetCurrentProcessId());</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="preprocessor">            #ifdef _MSC_VER</span></div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="preprocessor">            #pragma warning (default : 4996)</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="preprocessor">            #endif</span></div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        }</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        <span class="keywordtype">bool</span> <a class="code" href="classttmath_1_1_thread_lock.html#ac14a9e9971fa9b6aa397fa391f6fc09e">Lock</a>()</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        {</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <span class="keywordtype">char</span> buffer[50];</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            CreateName(buffer);</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            mutex_handle = CreateMutexA(0, <span class="keyword">false</span>, buffer);</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;            <span class="keywordflow">if</span>( mutex_handle == 0 )</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;            WaitForSingleObject(mutex_handle, INFINITE);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        }</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        ThreadLock()</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;        {</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            mutex_handle = 0;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        }</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        ~ThreadLock()</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        {</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;            <span class="keywordflow">if</span>( mutex_handle != 0 )</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            {</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                ReleaseMutex(mutex_handle);</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                CloseHandle(mutex_handle);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            }</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;        }</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    };</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="preprocessor">#endif  // #ifdef TTMATH_WIN32_THREADS</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="preprocessor">#ifdef TTMATH_POSIX_THREADS</span></div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="comment">/*</span></div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment">        we use posix threads</span></div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="comment">        in multithreads environment you should use TTMATH_MULTITHREADS_HELPER macro</span></div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="comment">        somewhere in *.cpp file</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment">        (this macro defines a pthread_mutex_t object used by TTMath library)</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="ttmaththreads_8h.html#a975b26cb3d63a70a0c085cfb3a5a9ca7">  157</a></span>&#160;<span class="preprocessor">    #define TTMATH_MULTITHREADS_HELPER                          \</span></div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="preprocessor">    namespace ttmath                                            \</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="preprocessor">    {                                                           \</span></div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="preprocessor">    pthread_mutex_t ttmath_mutex = PTHREAD_MUTEX_INITIALIZER;   \</span></div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="preprocessor">    }</span></div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">        ttmath_mutex will be defined by TTMATH_MULTITHREADS_HELPER macro </span></div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keyword">extern</span> pthread_mutex_t <a class="code" href="namespacettmath.html#af7ec4eb78a37bd53d8a6ec921be57288">ttmath_mutex</a>;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment">        \brief objects of this class are used to synchronize</span></div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="comment">        this is a simple skeleton of a program in multithreads environment:</span></div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="comment">            #define TTMATH_MULTITHREADS</span></div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">            #include&lt;ttmath/ttmath.h&gt;</span></div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment">            TTMATH_MULTITHREADS_HELPER</span></div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="comment">            int main()</span></div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment">            {</span></div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="comment">            [...]</span></div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="comment">            }</span></div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;<span class="comment">        make sure that macro TTMATH_MULTITHREADS is defined and (somewhere in *.cpp file)</span></div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="comment">        use TTMATH_MULTITHREADS_HELPER macro (outside of any classes/functions/namespaces scope)</span></div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="classttmath_1_1_thread_lock.html">  188</a></span>&#160;    <span class="keyword">class </span><a class="code" href="classttmath_1_1_thread_lock.html">ThreadLock</a></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    {</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="comment">        /*!</span></div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="comment">            lock the current thread</span></div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;<span class="comment">            it uses a global mutex created by TTMATH_MULTITHREADS_HELPER macro</span></div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;<span class="comment">        */</span></div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="classttmath_1_1_thread_lock.html#ac14a9e9971fa9b6aa397fa391f6fc09e">  197</a></span>&#160;        <span class="keywordtype">bool</span> <a class="code" href="classttmath_1_1_thread_lock.html#ac14a9e9971fa9b6aa397fa391f6fc09e">Lock</a>()</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        {</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;            <span class="keywordflow">if</span>( pthread_mutex_lock(&amp;<a class="code" href="namespacettmath.html#af7ec4eb78a37bd53d8a6ec921be57288">ttmath_mutex</a>) != 0 )</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        }</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        ~<a class="code" href="classttmath_1_1_thread_lock.html">ThreadLock</a>()</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        {</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            pthread_mutex_unlock(&amp;<a class="code" href="namespacettmath.html#af7ec4eb78a37bd53d8a6ec921be57288">ttmath_mutex</a>);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        }</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    };</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="preprocessor">#endif // #ifdef TTMATH_POSIX_THREADS</span></div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="preprocessor">#if !defined(TTMATH_POSIX_THREADS) &amp;&amp; !defined(TTMATH_WIN32_THREADS)</span></div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;<span class="comment">        we don&#39;t use win32 and pthreads</span></div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;<span class="preprocessor">    #define TTMATH_MULTITHREADS_HELPER</span></div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;<span class="comment">    /*!</span></div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="comment">        objects of this class are used to synchronize</span></div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="comment">        actually we don&#39;t synchronize, the method Lock() returns always &#39;false&#39;</span></div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    <span class="keyword">class </span>ThreadLock</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    {</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        <span class="keywordtype">bool</span> <a class="code" href="classttmath_1_1_thread_lock.html#ac14a9e9971fa9b6aa397fa391f6fc09e">Lock</a>()</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        {</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        }</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    };</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;<span class="preprocessor">#endif // #if !defined(TTMATH_POSIX_THREADS) &amp;&amp; !defined(TTMATH_WIN32_THREADS)</span></div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;} <span class="comment">// namespace</span></div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;</div><div class="ttc" id="namespacettmath_html_af7ec4eb78a37bd53d8a6ec921be57288"><div class="ttname"><a href="namespacettmath.html#af7ec4eb78a37bd53d8a6ec921be57288">ttmath::ttmath_mutex</a></div><div class="ttdeci">pthread_mutex_t ttmath_mutex</div></div>
<div class="ttc" id="namespacettmath_html"><div class="ttname"><a href="namespacettmath.html">ttmath</a></div><div class="ttdoc">a namespace for the TTMath library</div><div class="ttdef"><b>Definition:</b> <a href="ttmath_8h_source.html#l00062">ttmath.h:62</a></div></div>
<div class="ttc" id="ttmathtypes_8h_html"><div class="ttname"><a href="ttmathtypes_8h.html">ttmathtypes.h</a></div><div class="ttdoc">constants used in the library</div></div>
<div class="ttc" id="classttmath_1_1_thread_lock_html"><div class="ttname"><a href="classttmath_1_1_thread_lock.html">ttmath::ThreadLock</a></div><div class="ttdoc">objects of this class are used to synchronize</div><div class="ttdef"><b>Definition:</b> <a href="ttmaththreads_8h_source.html#l00188">ttmaththreads.h:188</a></div></div>
<div class="ttc" id="classttmath_1_1_thread_lock_html_ac14a9e9971fa9b6aa397fa391f6fc09e"><div class="ttname"><a href="classttmath_1_1_thread_lock.html#ac14a9e9971fa9b6aa397fa391f6fc09e">ttmath::ThreadLock::Lock</a></div><div class="ttdeci">bool Lock()</div><div class="ttdef"><b>Definition:</b> <a href="ttmaththreads_8h_source.html#l00197">ttmaththreads.h:197</a></div></div>
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